Numver of fixes

src/cmd_line.rs

@@ -164,8 +164,12 @@ impl State {
         let block = self.block.as_ref();
         let level = self.levels.last();
 
-        let (block_width, block_height) = block.map(|b| (b.preferred_width, b.preferred_height)).unwrap_or((0, 0));
-        let (level_width, level_height) = level.map(|l| (l.preferred_width, l.preferred_height)).unwrap_or((0, 0));
+        let (block_width, block_height) = block
+            .map(|b| (b.preferred_width, b.preferred_height))
+            .unwrap_or((0, 0));
+        let (level_width, level_height) = level
+            .map(|l| (l.preferred_width, l.preferred_height))
+            .unwrap_or((0, 0));
 
         drawing_area.set_size_request(
             max(level_width, block_width),
@@ -268,16 +272,19 @@ impl CmdLine {
     }
 
 
-    pub fn block_append(&mut self, content: &Vec<Vec<(HashMap<String, Value>, String)>>) {
+    pub fn block_append(&mut self, content: &Vec<(HashMap<String, Value>, String)>) {
         let mut state = self.state.borrow_mut();
         let render_state = state.render_state.clone();
         {
+            let attr_content = content
+                .iter()
+                .map(|c| {
+                    (Some(Attrs::from_value_map(&c.0)), c.1.chars().collect())
+                })
+                .collect();
+
             let block = state.block.as_mut().unwrap();
-            block.replace_line(
-                &Level::to_attributed_content(content),
-                &*render_state.borrow(),
-                true,
-            );
+            block.replace_line(&vec![attr_content], &*render_state.borrow(), true);
             block.update_cache(&*render_state.borrow());
         }
         state.request_area_size();
@@ -297,7 +304,7 @@ fn gtk_draw(
     let level = state.levels.last();
     let block = state.block.as_ref();
 
-    let preferred_height = level.map(|l| l.preferred_height).unwrap_or(0) 
+    let preferred_height = level.map(|l| l.preferred_height).unwrap_or(0)
         + block.as_ref().map(|b| b.preferred_height).unwrap_or(0);
 
     let render_state = state.render_state.borrow();

src/nvim/redraw_handler.rs

@@ -86,7 +86,7 @@ pub trait RedrawEvents {
 
     fn cmdline_block_append(
         &mut self,
-        content: Vec<Vec<(HashMap<String, Value>, String)>>,
+        content: Vec<(HashMap<String, Value>, String)>,
     ) -> RepaintMode;
 
     fn cmdline_block_hide(&mut self) -> RepaintMode;

src/render/model_clip_iterator.rs

@@ -1,4 +1,6 @@
+use std::cmp::min;
 use std::slice::Iter;
+
 use cairo;
 
 use super::context::CellMetrics;
@@ -76,17 +78,17 @@ impl ModelClipIteratorFactory for ui_model::UiModel {
         let model = self.model();
 
         let (x1, y1, x2, y2) = ctx.clip_extents();
-        let model_clip = ui_model::ModelRect::from_area(cell_metrics, x1, y1, x2, y2);
-        let model_clip_top = if model_clip.top <= 0 {
+
+        // in case ctx.translate is used y1 can be less then 0
+        // in this case just use 0 as top value
+        let model_clip = ui_model::ModelRect::from_area(cell_metrics, x1, y1.max(0.0), x2, y2);
+
+        let model_clip_top = if model_clip.top == 0 {
             0
         } else {
             model_clip.top - 1
         };
-        let model_clip_bot = if model_clip.bot >= model.len() - 1 {
-            model.len() - 1
-        } else {
-            model_clip.bot + 1
-        };
+        let model_clip_bot = min(model.len() - 1, model_clip.bot + 1);
 
         ModelClipIterator {
             model_idx: model_clip_top,

src/shell.rs

@@ -1227,7 +1227,7 @@ impl RedrawEvents for State {
 
     fn cmdline_block_append(
         &mut self,
-        content: Vec<Vec<(HashMap<String, Value>, String)>>,
+        content: Vec<(HashMap<String, Value>, String)>,
     ) -> RepaintMode {
         self.cmd_line.block_append(&content);
         RepaintMode::Nothing